You want to check out: Aikido and Chinese Martial Arts: aikido and weapons training Vol. 2
by Tetsutaka Sugawara (with co-authors). This vol. has all 8 kumijo katas AND the five jo-ai katas that are kick @$$. This is the style I study/train and this work is a must have if you want proper technique that stresses footwork and reflects open-hand movements. Amazon got mine for only $15! Well worth it if you ask me!!